Bailer



Aug. 21, 192sr 1 C. E. COLESTON BA'ILER Original Filed Nov. 10, 1926 Gi/0626,@ Co Zcsn Patented Aug. 21, 1928.

UNITED STATES PATENT OFFICE.

BAILER.

Application filed November 10, 1926, Serial No. 147,455. Renewed January 30, 1928.

My invention is a bailer for use particularly in hailing oil wells, a particular feature of the invention applying to the bailer proper.

An object of my invention is the construcu tion of a bailer for use in bailing oil wells in which the material being bailed is forced upwardly through a trap or valve in the bailer and is held in a receptacle or the like and also in a tube to which the bailer is attached, a feature of the invention being the construction by which the lower part having a trap and the upper part to which the trap is connected may be readily rotated one in relation to the other, when the bailer is lifted above the well, without causing any damage to the lower part or to the inner part of the bailer construction, this being arranged to discharge the bailer.

A more specific object of my invention is the construction of a bailer with the bucket having a trap at the base held in a bucket supporting structure, the bucket on the supporting structure having a lateral opening so that on relative turning of the supporting structure relative to the bucket when the same is raised and held stationary the oil, sand, or the like, being bailed may be readily discharged.

In constructing my invention I utilize a bucket having a suitable shoe and with a trap therein, the bucket having a lateral opening, the bucket supporting structure substantially surrounding the bucket and also has the lateral opening to register with that of the bucket for discharging the bailer. The bucket is slidable in the support and, when raised out of the well, may rest on a platform or the like so that by partial rotation of the pipe and the bucket support the lateral openings may be aligned and the bailer discharged.

My invention is illustrated in the accompanying drawings in which:

Figure 1 is a vertical section through my bailer.

Figure 2 is a horizontal section on the line 22 of Fig. l in the direction of the arrows.

Figure 3 is a vertical section of a. slight modification of the bailer.

In the construction shown in Figs. 1 and 2 the bucket 1 has a tapering side wall 2 with a lateral elongated vertical opening 3 for discharge of same. A shoe 4, having an upwardly extending flange 5, is connected to the wall 2 by a screw threaded connection 6. An

annular valve seat 7 is caught between the horizontal flange 8 of the shoe and the lower edge of the wall 2. This construction leaves a comparatively large opening 9 which is closed by the trap 10 pivoted, as indicated at 11, to one side of the valve seat.

A suitable tube 12 or the like used for bailing and being connected to suitable bailing tackle has the coupling 13 to which is connected a bailer supporting structure 14, this structure having a taper 15 on the inside conforming to the tapering side wall 2 of the bucket. An elongated discharge opening 16 is formed in the supporting walls so that on registry of the openings 3 and 16 the bailer may be discharged. It will be noted that there is a space 17 between the upper part of the flange 5 of the shoe and the lower part 18 of the supporting wall.

In the construction sho-wn in Fig. 3 the bucket has a cylindrical wall 20 with a flange 21 on the upper end, this flange engaging o-n an annular shoulder 22 of the cylindrical wall 23 of the bucket supporting structure. The bucket has a lateral opening 3, as has the supporting wall 23, similar to the construction of Figs. 1 and 2. The shoe and trap are of the same character as shown in Figs. 1 and 2 and the connection with the tube 12 by the couplings 13 is the same as in these prior figures. There is a space at the upper end of the bucket walls in both the constructions below the coupling to allow slight sliding movement of the bucket and its supporting walls.

The manner of functioning of my bailer is substantially as follows:

The bucket and the supporting wall structure for same, when lowered into a well, are positioned substantially as shown with the lateral openings out of registry. The sand, muck, or other material, flows upwardly through the trap and may ill the bucket as well as passing upwardly to a considerable extent in the tube 12. When the bailer is raised to the surface of the well it may be lowered until the shoe 12 rests on a suitable plat form or the like. The weight of the tube 12 and the supporting structure, as well as operating devices above the structure shown, force the supporting walls and the pipe 12 downwardly in reference to the bucket. In the construction of Figs. 1 and 2 on account of the taper of the bucket and of its supporting walls these are freed from each other on such downward motion and the bucket walls of the pipe 12 may be partially rotated until the two lateral openings are brought into registry whence the bailer will discharge.

In Fig. 3 where the walls of the bucket and the supporting walls are cylindrical the weight of the structure resting on the shoe disengages the flange 11 from the annular shoulder 22 and the pipe 12 with the supporting wall structure 28 may be rotated a partial turn bringing the lateral openings into registry for discharging the bucket.

From the above description it will be seen that I have developed a simple type of bailer in which the bucket walls are not injured by turning clamps or the like and if such clamps or wrenches are used they may clamp on the Walls of the bucket supporting structure.

A distinctive feature of my bailer is in having the bucket inside the supporting structure in which it is slidable and rotatable. Due to this feature the bailer itself can be made of quite light material and is not damaged in the endeavor to turn same with a wrench to cause the lateral openings in the bucket and supporting structure to register for discharging the bailer.

Another advantage of my bailer construction with the internal bucket is that the shoe of the bucket may be lowered onto a discharging platform and a wrench or the like may be gripped on the pipe above the supporting structure, turning this pipe and such structure until the lateral openings register. The bucket is also protected from damage in lowering the bailer into a well and drawing' it out, which is an important feature from an industrial standpoint. Many other advantages of my bailer willbe apparent to those i familiar with the art.

Various changes may be made in the principles of my invention without departing from the spirit thereof, as set forth in the description, drawings and claims.

I claim:

l. A bailer comprising in combination, a bucket having a trap at the base and a lateral opening in its vertical wall,.a support having a vertical wall with. a lateralopening, the bucket being slidable relatively` to the supporting wall, and inter-engaging means between the bucket and the supporting wall to sustain the bucket in the bailing operation,

said inter-engaging means allowing relative I rotation of the supporting wall andv the bucket.

2. A bailer having an inside bucket with a vertical wall with a lateral opening, a shoe secured to the base of the wall and having a trap therein, the wall having a lateral opening, an outside support having a vertical wall with a lateral opening, inter-engaging means between the supporting wall and the wall of the bucket to sustain the bucket while being inserted in the well, the inter-engaging means allowing relative longitudinal movement and rotation of the supporting wall and the wall of the bucket.

3. A bailer comprising in combination, a tube having a couplingl connected thereto, a bucket supporting structure having a vertical wall secured to the coupling and said wall having a lateral opening, a bucket having a vertical wall with a lateral opening tting inside the supporting wall and sustained thereby, a shoe connected to the bucket wall having atrap, the bucket being slidable and rotatable in the supporting wall.

4. A bailer comprising in combination, a bucket having a tapering vertical wall with a lateral opening and having a trap at its base, a supporting structure having a vertical wall with a taper on the inner surface to engage and support the bucket, the supporting wall having a lateral opening, and a tube or the like connected to the supporting wall.

5. A bailer comprising in combination, a bucket having a vertical tapered wall of substantially constant thickness with a lateral opening, a shoe on the base of the wall, and a trap, a supporting structure having a vertical wall with a taper on its inner surface corresponding to that of the bucket wall, and engaging the outside and supporting said bucket, the supporting wall having a lateral opening to register with that of the bucket, and means to sustain the supporting structure.

6. A bailer comprising in combination, a bucket having a vertical tapered wall with a lateral opening, a shoe secured to the base of the wall, an annular valve seat resting on the shoe, aI pivoted trap forming a closure on the valve seat, a supporting structure having a vertical wall with a taper on its inner surface to engage and support the bucket, said supporting wall having a lateral opening to register with that of the bucket, the bucket and supporting structure being relatively slidable longitudinally and rotatably.

In testimony whereof I have signed my name to this specification.

CLAUDE n. coLnsroN. 

